Diethyl phthalate (DEP)

Description

Diethyl phthalate (DEP) · CAS 84-66-2 · C12H14O4. UNII UF064M00AF. Boiling Point: 568 °F at 760 mmHg (NTP, 1992); Boiling Point: 295 °C; Boiling Point: 563 °F.

Identification

CAS Registry Number	84-66-2
PubChem CID	6781
Molecular formula	C12H14O4
IUPAC name	diethyl benzene-1,2-dicarboxylate
UNII (FDA)	UF064M00AF

Computed Descriptors

Molecular Weight	222.24
XLogP3	2.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	6
Exact Mass	222.08920892
Monoisotopic Mass	222.08920892
Topological Polar Surface Area	52.6
Heavy Atom Count	16
Formal Charge	0

Physical & Chemical Properties

Boiling Point	568 °F at 760 mmHg (NTP, 1992)
Boiling Point	295 °C
Boiling Point	563 °F
Boiling Point	295 °C @760 [mm Hg]
Melting Point	27 °F (NTP, 1992)
Melting Point	-40.5 °C
Melting Point	-67 - -44 °C
Melting Point	-41 °F
Flash Point	284 °F (NTP, 1992)
Flash Point	161 °C

Physical description & handling notes

• CBI; Liquid
• Colorless to water-white, oily liquid with a very slight, aromatic odor. (pesticide); [NIOSH]
• COLOURLESS OILY LIQUID.
• Colorless oily liquid
• Colorless to water-white, oily liquid.
• Practically odorless

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetics ingredient -> Fragrance; Other (Specify); Solvent CIR / INCI: Cosmetic ingredients (Diethyl Phthalate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Solvent; Hair conditioning; Denaturant; Film forming; Plasticiser
GHS notification summary	96.7% (1710 / 1769)

GHS Hazard Classification

GHS notification summary	96.7% (1710 / 1769)
Reported hazard statements	H401, H315, H317, H320, H335, H336

Documented Uses

• CIR ingredient: Diethyl Phthalate
• Plasticizer (added to polymers to effect flexibility and/or toughness); also used as an insect repellant and solvent; [ACGIH] Used as a solvent in cellulose acetate, fragrances, and cosmetics; [Merck Index #7371]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• In mfr celluloid; solvent for cellulose acetate in mfr varnishes and dopes; denaturing alcohol. Vehicle for fragrance and cosmetic ingredients
• Solvent for nitrocellulose and cellulose acetate, plasticizer, wetting agent; ... camphor substitute, plastics, perfumery as fixative and solvent, alcohol denaturant, ... plasticizer in solid rocket propellants.
• ... insecticidal sprays ... mosquito repellents /Former/

Synonyms

DIETHYL PHTHALATE; 84-66-2; Ethyl phthalate; phthalic acid diethyl ester; Anozol; diethyl benzene-1,2-dicarboxylate; Neantine; Phthalol; Solvanol; Palatinol A; Placidol E; Unimoll DA; Diethyl o-phthalate; Phthalsaeurediaethylester; o-Bis(ethoxycarbonyl)benzene; Diethyl 1,2-benzenedicarboxylate

Frequently Asked Questions

What are the CAS number and molecular formula of Diethyl phthalate (DEP)?

CAS 84-66-2; molecular formula C12H14O4; molecular weight — g/mol.

What other names is Diethyl phthalate (DEP) known by?

DIETHYL PHTHALATE, 84-66-2, Ethyl phthalate, phthalic acid diethyl ester, Anozol, diethyl benzene-1,2-dicarboxylate.

What is the regulatory status of Diethyl phthalate (DEP)?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetics ingredient -> Fragrance; Other (Specify); Solvent; CIR / INCI: Cosmetic ingredients (Diethyl Phthalate) -> CIR (Cosmetic Ingredient Review).

Is Diethyl phthalate (DEP) classified as hazardous?

96.7% of GHS notifications report no hazard classification (1710 of 1769).

What are the key physical properties of Diethyl phthalate (DEP)?

Boiling Point: 568 °F at 760 mmHg (NTP, 1992); Boiling Point: 295 °C; Boiling Point: 563 °F; Boiling Point: 295 °C @760 [mm Hg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.